Financial Performance & Guidance - Q2 2021 operating revenues increased to $2856 million from $1928 million in Q2 2020[8] - Q2 2021 net income increased to $421 million from $169 million in Q2 2020[8] - Q2 2021 diluted EPS was $101 compared to $042 in Q2 2020[8] - The company raised its 2021 diluted earnings per share guidance range to $350-$365 from $247-$262[8] - The midpoint of the new EPS guidance range is $103 higher than the midpoint of the previous range[8] Segment Performance - Electric Segment earnings increased by $21 million due to increased retail revenues and the commercial operation of Merricourt & Astoria Station being fully covered in rates[9] - Manufacturing Segment earnings increased by $55 million due to increased sales across all end markets and increased scrap metal revenues[9] - Plastics Segment earnings increased by $174 million, driven by higher pipe prices and improved operating margins due to PVC resin supply constraints[10] Strategic Initiatives & Investments - The company's target earnings contributions are 70-75% from the Electric platform and 25-30% from the Manufacturing platform[6] - Capital spending of $653 million is planned from 2021 to 2025, with $138 million (21%) allocated to renewable resource additions and $138 million (21%) to regional transmission additions and replacements[43, 44] - The Astoria Station natural gas plant, a 245-MW simple-cycle unit, was completed at a cost of $1525 million and committed in the MISO market on April 30, 2021[25, 26, 27] Cleaner Energy Future - By 2023, the company's customers will receive approximately 35% of their energy from renewable resources[19] - Carbon emissions from owned generation resources are targeted to be 50% lower than 2005 levels by 2025 and 97% below 2005 levels by 2050[19] - Otter Tail Power Company achieved a 43% reduction in CO2 emissions from 2005 to 2020[17]

Otter Tail Corporation (NASDAQ:OTTR) Q2 2021 Earnings Conference Call August 3, 2021 11:00 AM ET Company Participants Loren Hanson - Investor Relations Chuck MacFarlane - President and CEO Kevin Moug - Senior Vice President and Chief Financial Officer Conference Call Participants Chris Ellinghaus - Siebert Williams Brian Russo - Sidoti Sophie Karp - KeyBanc Operator Good morning, and welcome to the Otter Tail Corporation's Q2 2021 Earnings Conference Call. Today's call is being recorded and we will hold a q ...

Otter Tail Corporation (NASDAQ:OTTR) Q1 2021 Earnings Conference Call May 4, 2021 11:00 AM ET Company Participants Loren Hanson - Investor Relations Chuck MacFarlane - President and CEO Kevin Moug - CFO Conference Call Participants Chris Ellinghaus - Siebert Williams Brian Russo - Sidoti Operator Good morning, and welcome to the Otter Tail Corporation's Q1 2021 Earnings Conference Call. Today's call is being recorded. [Operator Instructions] I will now turn the call over to the company for their opening com ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly ended March 31, 2021 or ☐ Transition Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File Number 0-53713 OTTER TAIL CORPORATION (Exact name of registrant as specified in its charter) Minnesota (State or other jurisdiction of incorporation or organizati ...

SIDOTI SPRING VIRTUAL INVESTOR CONFERENCE March 24-25, 2021 RGB COLORS FORWARD-LOOKING STATEMENT This presentation contains statements that may be considered forward-looking statements. The words "anticipate," "believe," "could," "estimate," "expect," "intend," "may," "outlook," "plan," "possible," "potential," "should," "will," "would" and similar words and expressions are intended to identify forward-looking statements. Such statements are based upon the current beliefs and expectations of management. For ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ Annual Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2020 or ☐ Transition Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File Number 0-53713 OTTER TAIL CORPORATION (Exact name of registrant as specified in its charter) Minnesota (State or other jurisdiction of incorporation or organiza ...

Otter Tail Corporation (NASDAQ:OTTR) Q4 2020 Earnings Conference Call February 16, 2021 11:00 AM ET Company Participants Loren Hanson - Investor Relations Chuck MacFarlane - President & Chief Executive Officer Kevin Moug - Senior Vice President & Chief Financial Officer Conference Call Participants Sophie Karp - KeyBanc Brian Russo - Sidoti Tate Sullivan - Maxim Group Operator Good morning, and welcome to Otter Tail Corporation's 2020 Earnings Conference Call. Today's call is being recorded and we will hold ...